The first gives a very detailed history of the A1 (Great North Road) from London to Edinburgh.
Please click here to visit the site.
The other, by SABRE (Society for All British Road Enthusiasts), contains a wealth of information, including a detailed description of every A-road in the UK - an ongoing project, although all those in the LEYTR area appear to have been covered.
Some fascinating facts emerge, including one about the A16, which runs between Grimsby and Stamford:
The original A16 (before it had lots of bypasses built) had 16 mile stretches between all of its towns:
The A16 also utilises what is thought to be the lengthiest section of road built on dismantled railway - 12 miles - between Spalding and Boston.
Grimsby to Louth = 16 miles Louth to Spilsby = 16 miles Spilsby to Boston = 16 miles Boston to Spalding = 16 miles Spalding to Stamford = 16 miles
To visit the site, please click here. (PW/GL)